
I’m going to give you a lot of calcs offensively and defensively, to demonstrate that this thing is insane and you should experiment with it.
First, for the sub/toxic specially defensive set, I’ll post the calc and put what it can do back in parentheses after, since even uninvested it’s still so strong.
252+ SpA Choice Specs Tapu Lele Psychic vs. 252 HP / 252+ SpD Aegislash-Both in Psychic Terrain: 89-105 (27.4 - 32.4%) -- 68% chance to 4HKO after Leftovers recovery (easy 2hko, ~70-80%)
252 SpA Choice Specs Dragapult Shadow Ball vs. 252 HP / 252+ SpD Aegislash-Both: 186-222 (57.4 - 68.5%) -- guaranteed 2HKO after Leftovers recovery (56% to ohko, guaranteed w/ rocks)
252 SpA Tapu Fini Hydro Pump vs. 252 HP / 252+ SpD Aegislash-Both: 84-99 (25.9 - 30.5%) -- 50.3% chance to 4HKO after Stealth Rock and Leftovers recovery (3hko)
252 SpA Tapu Koko Thunderbolt vs. 252 HP / 252+ SpD Aegislash-Both in Electric Terrain: 88-105 (27.1 - 32.4%) -- 98.7% chance to 4HKO after Stealth Rock and Leftovers recovery (2hko)
252+ SpA Choice Specs Kyurem Ice Beam vs. 252 HP / 252+ SpD Aegislash-Both: 69-81 (21.2 - 25%) -- possible 5HKO after Stealth Rock and Leftovers recovery (prolly best to eat a hit and toxic it, but earth power does 2hko if specs, high chance to 3hko with earth power if not specs
252 SpA Blacephalon Overheat vs. 252 HP / 252+ SpD Aegislash-Both: 270-320 (83.3 - 98.7%) -- 31.3% chance to OHKO after Stealth Rock (you ohko)
252 SpA Choice Specs Blacephalon Shadow Ball vs. 252 HP / 252+ SpD Aegislash-Both: 252-296 (77.7 - 91.3%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery (you die to overheat, and have a high chance to live flamethrower)
252+ SpA Life Orb Sheer Force Nidoking Earth Power vs. 252 HP / 252+ SpD Aegislash-Both: 234-276 (72.2 - 85.1%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery (2hko w/ rocks)
For most of those, the point was not to suggest you use Aegislash to beat those mons, it was just to point out that it *can*. I think it’s a heavily overlooked steel, especially since Gapdos and Lucha are always pretty present threats (especially the former more recently), and this guy doesn’t even really care with a SpDef set, so neutral hits are just gonna bounce off (heck, the dude lives a +1 flamethrower from offensive volc and can toxic it - +1 252 SpA Volcarona Flamethrower vs. 252 HP / 252+ SpD Aegislash-Both: 258-306 (79.6 - 94.4%) -- 6.3% chance to OHKO after Stealth Rock)
Now, another set that I’ve used, specs, hits insanely hard. Those annoying bulky cores you gotta break through? This guy has you covered (and just to get it out of the way, CC on specs even modest still 2hko blissey, so shadow ball immunes aren’t really an issue). This is 252+ specs, and to make it easier to read, I took some words out, but it’s all shadow ball calcs
(max SpDef) vs. 252 HP / 252+ SpD Landorus-Therian: 189-223 (49.4 - 58.3%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
vs. 248 HP / 92 SpD Corviknight: 235-277 (58.8 - 69.4%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
vs. 252 HP / 136+ SpD Heatran: 174-205 (45 - 53.1%) -- 87.5% chance to 2HKO after Stealth Rock and Leftovers recovery
vs. 252 HP / 56+ SpD Clefable: 211-250 (53.5 - 63.4%) -- guaranteed 2HKO after Leftovers recovery
duh
vs. 252 HP / 4 SpD Toxapex: 168-198 (55.2 - 65.1%) -- guaranteed 2HKO after Stealth Rock
vs. 252 HP / 176+ SpD Ferrothorn: 157-186 (44.6 - 52.8%) -- 24.6% chance to 2HKO after Stealth Rock and Leftovers recovery
vs. 252 HP / 80 SpD Assault Vest Tornadus-Therian: 153-180 (42.2 - 49.7%) -- guaranteed 2HKO after Stealth Rock
you have a chance to 2hko it even with shadow ball lol, so much damage
duh
vs. 0 HP / 0 SpD Urshifu-Rapid-Strike: 343-405 (100.5 - 118.7%) -- guaranteed OHKO
vs. 252 HP / 0 SpD Tapu Fini: 181-214 (52.6 - 62.2%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
vs. 0 HP / 4 SpD Garchomp: 259-306 (72.5 - 85.7%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
dies 2x lol
flash cannon obv kills but - vs. 56 HP / 0 SpD Kyurem: 249-294 (61.4 - 72.5%) -- guaranteed 2HKO
vs. 128 HP / 252+ SpD Assault Vest Melmetal: 144-169 (32.5 - 38.1%) -- guaranteed 3HKO after Stealth Rock
vs. 252 HP / 248+ SpD Hippowdon: 202-238 (48 - 56.6%) -- 88.3% chance to 2HKO after Stealth Rock and Leftovers recovery
vs. 252 HP / 176+ SpD Assault Vest Slowking-Galar: 218-258 (55.3 - 65.4%) -- guaranteed 2HKO after Stealth Rock
AV - vs. 252 HP / 56 SpD Assault Vest Magnezone: 156-184 (45.3 - 53.4%) -- 90.2% chance to 2HKO after Stealth Rock
I could go further (like that it almost 2hko bulky dragon dance dnite with first hit multiscale) but the point is, the guy can live nearly any hit in the tier depending on spreads, and if you just go with something like specs or spell tag, he’s gonna live most hits anyway and kill them back.
even if you don’t plan to use this mon, you should look at the calcs just from these two sets to see how crazy it is. Plus, even with specs, you actually live hits from nearly anything I listed, especially if you ev Hp over speed.